[SPARK-31696][DOCS][FOLLOWUP] Update version in documentation

# What changes were proposed in this pull request?

This PR is a follow-up to fix a version of configuration document.

### Why are the changes needed?

The original PR is backported to branch-3.0.

### Does this PR introduce _any_ user-facing change?

Yes.

### How was this patch tested?

Manual.

Closes #28530 from dongjoon-hyun/SPARK-31696-2.

Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>

Author: dongjoon-hyun

docs/running-on-kubernetes.md

@@ -823,7 +823,7 @@ See the [configuration page](configuration.html) for information on Spark config
     Add the Kubernetes <a href="https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/">annotation</a> specified by <code>AnnotationName</code> to the driver service.
     For example, <code>spark.kubernetes.driver.service.annotation.something=true</code>.
   </td>
-  <td>3.1.0</td>
+  <td>3.0.0</td>
 </tr>
 <tr>
   <td><code>spark.kubernetes.executor.label.[LabelName]</code></td>